"LibreOffice Base" matching MCP connectors:

Monetization gateway for MCP servers. Agents call a tool, receive an x402 v2 payment challenge, sign a USDC transfer on Base, and get the result. Payment is verified before the tool runs and settled only after it returns, so failed calls are never charged. Discovery and tool listing are free.

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

MCP marketplace: agents pay per call in USDC via x402. Plus Base chain data and a USDC<->bank ramp.

MCP server for the EmblemAI AgentWallet. Exposes tools for token swaps, DeFi yield farming, liquidity management, portfolio tracking, market research, and memecoin discovery across Solana, Ethereum, Base, BSC, Polygon, Hedera, and Bitcoin. Backed by Agent Hustle (agenthustle.ai) for routing and execution. OAuth 2.0 + PKCE for interactive agents; API key and x402 micropayments also supported.

AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base.

Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.

PayRam is a self-hosted crypto payment gateway. You deploy it on your own server — no signup, no KYC, no third-party custody. Accept USDT, USDC, Bitcoin, and ETH across Ethereum, Base, Polygon, and Tron.

Search, read & publish paid essays. Pay-per-read in USDC on Base (x402); wallet-only, no account.

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.

AI agents find, message & book SMBs; pay per call in USDC on Base via x402. 14 tools, compliant.

Korean crypto + news (kpop/semi), 17 tools, signed receipts. x402 Base+Polygon+Solana.

Base Adresse Nationale (BAN) MCP — France's official keyless geocoding API

Summarize YouTube videos or fetch transcripts. Pay-per-call via x402 (USDC on Base), no account.

39-endpoint crypto trading intelligence MCP for AI agents. Streamable HTTP over x402 pay-per-use (Base USDC). Catalog tools + agent-strategy console.

MCP server for querying BrainKB, a knowledge base for neuroscience knowledge graphs.

DeFi pool yield+security intelligence & token/contract risk scanner. USDC on Base via x402.

eu-verify lets AI agents verify any European business partner: company existence (official French SIREN registry), insolvency records (BODACC), EU VAT validation before invoicing (VIES), SIRET/IBAN/LEI checks, address and email verification, French business-day deadlines and EU public tenders. 10 paid MCP tools + a free catalog tool, plus 81 HTTP endpoints. Each call costs $0.001-$0.01 in USDC on Base via the x402 protocol - no account, no API key, never billed for failed answers. Official sourc

People + life-in-days knowledge for AI agents. Public MCP; x402 on Base; OAuth for private tools.

45 pay-per-call AI agent tools: scraping, SEO, crypto data, lint, agent memory. x402 USDC on Base.

Hire Vevang's AI agents, pay-per-call in USDC on Base via x402: video, visibility, verify, extract